// 云函数入口文件
const cloud = require('wx-server-sdk')

cloud.init()
let db=cloud.database().collection("myExchangeList");
// 云函数入口函数
exports.main = async (event, context) => {

console.log("event:",event)
 return await db.where({
  _openid: event.openid,
  status:0

}).get();

}